English

On Hilbert scheme of complete intersection on the biprojective

Algebraic Geometry 2025-07-09 v2

Abstract

The goal of this paper is to construct the Hilbert scheme of complete intersections in the biprojective space X=Pm×PnX=\mathbb{P}^m\times\mathbb{P}^n and for this, we define a partial order on the bidegrees of the bihomogeneous forms. As a consequence of this construction, we computer explicitly the Hilbert scheme for curves of genus 7 and 8 listed in \cite{MUK95} and \cite{MUKIDE03} that are complete intersections. Finally, we construct the coarse moduli space of complete intersections in P1×P1\mathbb{P}^1\times\mathbb{P}^1.

Keywords

Cite

@article{arxiv.2411.12546,
  title  = {On Hilbert scheme of complete intersection on the biprojective},
  author = {Aislan Leal Fontes and Maxwell Paixão},
  journal= {arXiv preprint arXiv:2411.12546},
  year   = {2025}
}

Comments

19 pages

R2 v1 2026-06-28T20:05:05.645Z